Loom-shuttle spindle



(No Model.) W. T. OOGGESHALL.

LOOM SHUTTLE SPINDLE.

No. 323,1 15. Patented July 28, 1885.

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l NVENTOR MM 3. 56 mm WITNESSES N. PETERS. Phclo-Limogmpher. Wnnmgton, n. c

iJNrTnn STATES PATENT @rricn.

\VILLIAM T. COGGESHALL, OF LOWELL, MASSACHUSETTS.

LOOM-SHUTTLE SPINDLE.

SPECIFICATION forming part of Letters Patent No. 323,115, dated July 28, 1885.

Application filed February 15, 1883. Renewed December 26, 1884. (No model.) Patented in England March 6,1883, No. 1,194; in France March 6, 1883, No. 154,111, and in Belgium March 6, 1883, No. 60,663.

T 0 all whom it may concern.-

Be it known that I, WILLIAM T. Oceans- HALL, a citizen of the United States, residing at Lowell, in the county ofMiddleseX and State of Massachusetts, have invented certain new and useful Improvements in Loom Shuttle Spindles; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a top view of the spindle. Fig. 2 is a bottom view of the same. Fig. 3 is a central vertical longitudinal section.

This invention has relation to copretaining spindles for loonrshuttles; and it consists in the construction and novel arrangement of parts, as will be hereinafter fully described, and particularly pointed out in the claims appended.

In the accompanying drawings, the letter a designates the spindle of a loom-shuttle, having a longitudinal groove or slot, 1); or, preferably, a groove is made from the heel portion forward, and near the front end of the spindle a slot is made through the bottom of the groove, as indicated at c.

d represents a spring of elongated form, flattened from side to side. This spring is made with its upper edge, a, somewhat concave or inclined from the middle portion upward toward each end. The upper edge of the spring is usually serrated, the abrupt ends of the teeth being toward the heel. The spring is fastened into the groove or slot by its middle portion in a rigid manner, the fastening being accomplished by means of two transverse rivets, g g, or by means of solder; or the middle portion of the spring may be driven into a tight seat formed in the grooved portion of the spindle to receive it, or any ordinary means of rigidly fastening the spring at its middle portion may be employed. If solder is used, the side walls of both slot and spring, or of either of them, may be notched or recessed to afiord a hold to the solder. The

spring thus fastened to the spindle provides a rear springbranch, h, having an upward bend, and a front spring-branch,7c,having an upward bend,the upper edges of both branches projecting upward out of the groove or slot. In. this manner a heel-spring, h, is provided, as well as a front Spring, It, so that when the cop is put on it is held in rear as well as in front. As the thread is unwound from the (op its resistance to the front end of the spring is lessened. At the heel portion, however, the full resistance of the cop is maintained against the heel of the spring until the thread has been almost entirely unwound. The cop when first put on receives a constant pressurein its 6 5 interior from the spring, such pressure being greatest at the extreme points. The thread unwinds from the point of the'cop, and as the resistance of the thread gradually lessens at this point the spring gradually rises and still holds the cop in place. The full body of the thread at and near the heel of the spindle is unwound lastly, and the heel-spring operates in such relation to this portion that the cop is prevented from slipping, and the consequent breaking of the cop is avoided, as it is held at both the point and the heel. This double-acting spring is designed to prevent waste, as it will effectually hold the cop on the spindle until all the thread has been unwound therefrom. In some cases it is desirable to providedeep serrations in the upper edge of this spring, and in order to afford them full play in engaging the cop, depressions Z are formed in the top of the spindle on each side of the spring.

The spring is designed, usually, to be formed with a lug or projection, 2, at its rear end, which serves to prevent the cop from being pressed too far back on the spindle.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-

1. A longitudinally grooved or slotted spindle having a spring rigidly fastened at its ,g5

middle portion in the groove of the spindle, with its upper edge projecting out of the slot in rear and in front of the fastened portion, substantially as specified.

2. The combination of the cop holding spring d, having a concave upper edge, serrated, as shown, with a longitudinallygrooved ICO rated eoncave upper edge, and seated edgewise in the groove, and fastened rigidly there- I 5 in at its middle portion, said spring being free at its ends and having its rear end provided with a stop-p rojection, z, substantially as specified.

In testimony whereof I affix my signature 20 in presence of two witnesses.

WVILLIAM T.- OOGGESHALL.

Witnesses:

MARTIN L. HAMBLET, J .N. MAnsHALL. 

